Its an old design, the geometry isnt as good as a later chassis, the alloy arms suck, the shocks suck & it is not as adjustable. I used to race picco both 1/8th & 235mm & now I have a Mugen 1/8 & a Serpent 235mm it is like comparing a Toyota Starlet to a Ferrari.
As I said before its all good if you just want to play with it, but if you plan to race competitively you will be hosed down by the later model cars. The RS600 had its day nearly 10 years ago.
Serpent Radio Control Models